2211020220996 has 36 divisors (see below), whose sum is σ = 5592432879852. Its totient is φ = 736549804224.

The previous prime is 2211020220989. The next prime is 2211020221019. The reversal of 2211020220996 is 6990220201122.

It can be written as a sum of positive squares in 2 ways, for example, as 557507128896 + 1653513092100 = 746664^2 + 1285890^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2211020220996² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2211020220996.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18980131 + ... + 19096266.

Almost surely, 2^{2211020220996} is an apocalyptic number.

It is an amenable number.

2211020220996 is an abundant number, since it is smaller than the sum of its proper divisors (3381412658856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211020220996 is a wasteful number, since it uses less digits than its factorization.

2211020220996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38078020 (or 38078015 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 2211020220996 in words is "two trillion, two hundred eleven billion, twenty million, two hundred twenty thousand, nine hundred ninety-six".